NCLEX-RN
NCLEX RN Predictor Exam
1. In the Gram Stain procedure, which component acts as the mordant?
- A. Crystal violet
- B. Methyl alcohol
- C. Iodine
- D. Safranin
Correct answer: C
Rationale: In the Gram Stain procedure, the mordant is Gram's Iodine. The purpose of the mordant is to form a complex with the crystal violet, enhancing its ability to bind to the cell wall. Crystal violet is actually the primary stain used in the Gram Stain procedure to initially color all cells. Methyl alcohol is the decolorizer that removes the crystal violet from certain cell types. Safranin is the counterstain used to stain those cells that did not retain the crystal violet stain after the decolorization step.
2. A student is late for an appointment and has rushed across campus to the health clinic. How should the nurse proceed?
- A. Allow 5 minutes for the student to relax and rest before checking their vital signs.
- B. Check the blood pressure in both arms, expecting a difference in the readings due to the recent exercise.
- C. Immediately monitor the student's vital signs upon arrival at the clinic and then 5 minutes later, recording any differences.
- D. Check the student's blood pressure in the supine position to provide a more accurate reading and allow the student to relax at the same time.
Correct answer: A
Rationale: To ensure an accurate blood pressure reading, it is important for the student to be in a relaxed state. Allowing at least a 5-minute rest period helps reduce anxiety and provides a valid blood pressure measurement. Checking the blood pressure in both arms is unnecessary unless there is a specific reason to suspect an issue, and recent exercise should not significantly impact the readings. Monitoring vital signs immediately upon arrival may not yield accurate results due to the rush and anxiety of the student. Checking blood pressure in the supine position is not necessary in this scenario and does not provide a more accurate reading.
3. What is the BEST blood collection location for a newborn?
- A. the AC
- B. the veins of the forehead
- C. the heel
- D. the fingertips
Correct answer: C
Rationale: When collecting blood from newborns, it is safest and most commonly done by collecting blood from the lateral or medial aspect of the baby's heel. This location is preferred due to the accessibility of the veins and the minimal discomfort caused to the newborn. Veins in the forehead are not commonly used for blood collection in newborns. The fingertips are not optimal for blood collection in newborns due to their small size and the potential for causing discomfort. The AC (antecubital) area, typically used in adults for blood collection, is not recommended for newborns due to the size of their veins and the potential risk of injury.
4. Your patient had a stroke, or CVA, five years ago. The resident still has right-sided weakness. You are ready to transfer the resident from the bed to the wheelchair. The wheelchair should be positioned at the _____________.
- A. head of the bed on the patient's right side
- B. head of the bed on the patient's left side
- C. bottom of the bed on the patient's right side
- D. bottom of the bed on the patient's left side
Correct answer: B
Rationale: The wheelchair should be positioned at the head of the bed on the resident's left side. This positioning allows the resident to use their stronger left side to assist with the transfer, compensating for the right-sided weakness. Placing the wheelchair at the head of the bed on the patient's right side (Choice A) would not utilize the stronger left side, which is crucial for the transfer. Similarly, positioning the wheelchair at the bottom of the bed on either side (Choices C and D) would not facilitate optimal assistance from the resident's stronger side during the transfer process.
5. After taking the vital signs for your patient and finding them to be normal, what should you do next?
- A. Report the vital signs to the doctor
- B. Write the vital signs on a scrap paper
- C. Call the family members
- D. Document them on the graphic VS form
Correct answer: D
Rationale: After assessing and finding that the vital signs are normal for the patient, the appropriate action would be to document them on the graphic VS form. This form is used to track and record vital sign measurements accurately and consistently. Reporting the normal vital signs to the doctor is not necessary unless there are concerning trends or deviations. Writing the vital signs on a scrap piece of paper is not recommended as it may not be an official or reliable record. Calling the family members is unrelated to the process of documenting and tracking vital signs for the patient.
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